Acids. 



644 



1340 



Cineolic acid. 



Rnpe, H. and Lotz. W. Ciueolsiiure. 



V. Cineolsaiire-Aiiliyilrid imd Brom. — 



VI. Einwirkung von Scliwefelsaure auf 

 Cineolsaure. Berlin, Ber. D. chem. 

 Ges., 39, 1900, (407G-40S6). 



CYCLIC ACIDS CnH2„-605 



ACID CH.Os 



Cyclopentanone 2.4-dicarboxylic 



acid 



XH^.CO 

 ~CH2.CH.CO2H 

 Ethyl ester and its hydrolysis. 



C02H.CH<^ 



Kay, F. W. and Perkin, W. H. jnn. 

 London, J. Cliem. P.oc 89, 190G, fi040- 

 1648) ; [abstract] London, Proc. Chem. 

 Soc, 22; 1906, (269-270). 



ACIDS C3H10O5 



Cyclohexanone 2 4-dicarboxylic 

 acid 



co2h.ch<;;;E5;— ^H2-^co 



Ethyl ester and its hydrolysis. 



Kay, F. W. and Perkin, W. H. jun. 

 I.e. 



2-Cyclopentanone-i-acetic-l-car- 



boxylic acid 

 CH <t;<-*— C(,C02Hj.CH2.C02H 

 ' CH2 . CHj 



I'hhyl ester. 



Kotz, A. und Schiller, P. Liebigs 

 Ann. Chem., Leipzig, 350, 190''., (204- 

 246). 



ACID C H, O5 



1 -Methyl-3-cyclohexanone l, 4-di- 

 carboxylic acid. 



Diethyl ester 

 CH.Me<^iJ|^2-g]>C(C02Et)2 

 Kotz, A. i.e., (234-235). 



ACIDS CoHhOs 



l-Methyl-3 cyclohexanone- 1-acetic- 

 4 carboxylic acid 



Cn.\Ie<[-!j]2[:'[^>C(C02ll).CH2.C02H 



Kotz, A. iiikI Bieber, .\. t.r. (204- 

 2i6). 



Trimethylcyclopentanone 

 dicarboxylic acid 



' *^' CH2 —CO 



Diethyl ester. 



Perkin, W. H. jun. and Thorpe, J. F. 



[Ethyl 1: 1 : 3- triniethyl -4 - ketopenta- 

 methyleue-2 : 3-dicarboxylate ; its hydro- 

 lysis and the action of phosphorus 

 pentachloride on it.] Loudon, J. Chem. 

 Soc, 89, 1906, (778-795). 



ACID CuHooOs 



Pulegonemalonic acid 



D'iDicthyl and d'n'thyl csfer-s and the 

 barium salt. 



Vorlander, D. und Kothner, F. Lie- 

 bigs Ann. Chem., Leijjzig, 345, 1906, 



(158-187). 



CYCLIC ACIDS CnH^n-sOs 

 ACID C9H10O5 



Methylcyclohexenone dicarboxylic 

 acid. 



Ehrenstein, R. Isomeriefrage beiiu 

 ^lethylcvklohexenon und dessen Di- 

 karbousiiureester. Diss. Jena, 1906. 



CYCLIC ACIDS C„H2n-,605 

 ACID Ci3H,o05 



Indeneacetic-oxalic acid 



and the dhneOiyl and acid inelhyl csteis. 



Thiele, J. nnd RUdiger, il. Liebigs 

 Ann. Chem., Leipzig. 347, 1906, (275- 

 289). 



CYCLIC ACIDS Wrni SIX 

 OXYGEN A'JV.MS. 



CYCLIC ACID CnHjn.Os 



ACID CH, Ob 



Quinic acid 



Echtermeier, V. ( 'hinasiiure. Arch. 

 Pharm., Berlin, 244, 1906, (37-57). 



CYCLIC ACID CH^n-sOe 



ACID CH, 0,; 



3.3-Methylcyclohexanol- 1 -one 

 I 'i-dicarboxylic acid 



E.^lcr. 

 Rahm, F. Di.'^s. Jena, 1904. 



